Our removable, re-usable monthly calendars are available in A3 and A2 sizes and come with dry-wipe pens and an eraser. The re-adhesive monthly calendars are made using Wall-Tac material, a high-quality product that can be used indoors and features a smooth gloss finish. The high quality material also means it's thicker than other planners, making it plusher to write on and without being bumpy.